<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        .two{
            color: blue;
        }
        #three{
            color: pink;
        }
        div{
            width: 100px;
            height: 100px;
            border: 1px solid #333;
            padding: 50px;
            margin: 100px;
            
        }
    </style>
</head>
<body>
    <p class="one two" id="three">在？kkp</p>
    <div>div</div>
    
</body>
</html>